Results in 2 working days
1 Biomarker
Low iron levels can leave you feeling constantly tired, weak, and unwell. Our Ferritin Blood Test checks your body’s iron stores, helping you understand if you're at risk of iron deficiency or overload. Ideal for those experiencing fatigue, hair loss, or dizziness, this simple home test provides fast, accurate results. Your sample is analysed by an accredited NHS laboratory in the UK, providing expert insights and easy-to-understand reports to help you take control of your health and improve your energy level.
£39
Finger-prick kit
FREEYour kit will include multiple lancets and micro containers to collect your sample from home.
What gets tested?
1 Biomarker
As seen in
Getting the insights you need to improve your health has never been easier.
It takes 5 minutes to collect a small sample of blood from your finger tip. Post it back to our labs using the Tracked-24 envelope included in your kit.
You will receive your Results within 2 working days in the Forth app, along with the optional doctors comment and detailed report.
The detailed report makes it easy to identify areas that need improving, make changes and track your progress.
Checking your ferritin levels at home is quick and easy with our finger-prick blood test. Ferritin is a key marker of your body’s iron stores, helping to diagnose iron deficiency or overload. Low ferritin levels can lead to fatigue, hair thinning, and dizziness, while high levels may indicate inflammation or underlying health conditions.
With our home test, you simply collect a small blood sample using a finger-prick kit, then send it to our accredited lab for analysis. Your results are available in a secure online dashboard, complete with expert insights to help you understand your iron status. If your levels are low, you can take steps to improve your iron intake through diet and supplements.
"Elevated ferritin levels can be indicative of inflammation and have been linked to high blood pressure and atherosclerosis (hardening of the arteries). In contrast, low levels can indicate iron deficiency, which can lead to anaemia as well as reducing sleep quality, immune function and even thyroid function."
Dr Thom Phillips
Clinical lead
Our team of specialist doctors, dieticians and biomedical scientists are here to help you be in the best of health.
This is what our customers ask us about the most. For more information, try our help centre.
What is ferritin?
Ferritin is a protein that stores iron in your body, releasing it when needed. It helps regulate iron levels, ensuring your body has enough for essential functions like oxygen transport and energy production.
What is a ferritin blood test?
A ferritin blood test measures the amount of ferritin in your blood, indicating your iron storage levels. It’s used to diagnose iron deficiency, iron overload, and related health conditions.
What should ferritin levels be?
Data from thousands of Forth customers revealed the median ferritin level for women is 60 ug/L and 137 ug/L for men.
The data also shows that ferritin levels rise in women as they age, but drop in men.
| Ferritin Levels in Men and Women in the UK – Feb 2025 | ||
| Median Ferritin Levels (ug/L) | ||
| Age Bracket | Female | Male |
| 18-29 | 51.5 | 109 |
| 30-39 | 53 | 138 |
| 40-49 | 55 | 146 |
| 50-59 | 72 | 147 |
| 60+ | 99 | 174 |
Low ferritin levels may indicate iron deficiency, leading to fatigue and weakness. High ferritin levels can be linked to inflammation, liver disease, or iron overload disorders like haemochromatosis.
What other biomarkers should I check with ferritin?
It’s useful to check iron, transferrin saturation, B12 and folate alongside ferritin to get a full picture of your iron status. You can personalise this test to create a blood test tailored to your specific needs.
What causes low ferritin?
Low ferritin levels are usually caused by inadequate iron intake, heavy periods, pregnancy, poor absorption (e.g. coeliac disease), or blood loss from conditions like ulcers or gastrointestinal disorders.
What are the signs of low ferritin?
Symptoms of low ferritin include extreme fatigue, pale skin, dizziness, hair thinning, shortness of breath, and brittle nails. If left untreated, it can lead to iron deficiency anaemia.
How can I increase my ferritin levels?
To boost ferritin levels, increase your intake of iron-rich foods like red meat, spinach, and lentils. Pair iron with vitamin C for better absorption, and avoid excessive tea or coffee, which can block iron uptake. If needed, iron supplements may help, but consult a healthcare professional before use.
Is your packaging discreet?
Yes, the ferritin blood test is delivered in plain, unbranded packaging to protect your privacy.
How soon will the test arrive?
If you order before midday (Mon-Fri), your ferritin test kit will be dispatched the same day and should arrive within 1-2 working days.
How secure is my data?
We use industry-leading encryption to protect your personal information. Your results are private and only accessible through your secure account.
Can I have someone take my blood for me?
Yes, a healthcare professional or trusted person can assist you in collecting a blood sample. You can choose your collection method after adding the test to your basket.
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